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EM-400
카테고리
TEM개요
The EM 400 introduced in 1975 used a LAB6 electron gun, which was ten times as bright as the standard tungsten filament at the time. On the down side, the reactivity of lanthanum hexaboride required an ultra-clean vacuum system of 10-6 Torr.
활성 등재물
0
서비스
검사, 보험, 감정, 물류
상위 등재물
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